package my.example.com.audioapk;


import java.io.File;
import java.io.IOException;

import android.media.MediaRecorder;
import android.os.Bundle;
import android.os.Environment;
import android.view.SurfaceHolder;
import android.view.SurfaceView;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;

import my.example.com.audioapk.permission.PermissionActivity;

public class VideoActivity extends PermissionActivity {

private File myRecAudioFile;
private SurfaceView mSurfaceView;
private SurfaceHolder mSurfaceHolder;
private Button buttonStart;
private Button buttonStop;
private File dir;
private MediaRecorder recorder;

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.video);
mSurfaceView = (SurfaceView) findViewById(R.id.videoView);
mSurfaceHolder = mSurfaceView.getHolder();
mSurfaceHolder.setType(SurfaceHolder.SURFACE_TYPE_PUSH_BUFFERS);
buttonStart=(Button)findViewById(R.id.start);
buttonStop=(Button)findViewById(R.id.stop);
File defaultDir = Environment.getExternalStorageDirectory();
String path = defaultDir.getAbsolutePath()+File.separator+"V"+File.separator;
//创建文件夹存放视频
dir = new File(path);
if(!dir.exists()){
dir.mkdir();
}
recorder = new MediaRecorder();

buttonStart.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
recorder();
}
});

buttonStop.setOnClickListener(new OnClickListener() {
@Override
public void onClick(View v) {
recorder.stop();
recorder.reset();
recorder.release();
recorder=null;
}
});
}

public void recorder() {
try {
myRecAudioFile = File.createTempFile("video", ".3gp",dir);//创建临时文件
recorder.setPreviewDisplay(mSurfaceHolder.getSurface());//预览
recorder.setVideoSource(MediaRecorder.VideoSource.CAMERA);//视频源
recorder.setAudioSource(MediaRecorder.AudioSource.MIC); //录音源为麦克风
recorder.setOutputFormat(MediaRecorder.OutputFormat.THREE_GPP);//输出格式为3gp
recorder.setVideoSize(800, 480);//视频尺寸
recorder.setVideoFrameRate(15);//视频帧频率
recorder.setVideoEncoder(MediaRecorder.VideoEncoder.H263);//视频编码
recorder.setAudioEncoder(MediaRecorder.AudioEncoder.AMR_NB);//音频编码
recorder.setMaxDuration(10000);//最大期限
recorder.setOutputFile(myRecAudioFile.getAbsolutePath());//保存路径
recorder.prepare();
recorder.start();
} catch (IOException e) {
e.printStackTrace();
}
}
}